A47J 42/20
Grinding discs
A47J42/20 (Grinding discs) appears on 33 US grants and 43 published applications in this corpus.
Search patents in A47J- Granted patents
- 33
- Published applications
- 43
- Assignees
- 28
- Inventors
- 82
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 6 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 5 |
| 2022 | 4 | 6 |
| 2023 | 4 | 5 |
| 2024 | 4 | 3 |
| 2025 | 5 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Herb and spice grinder apparatus1 Sep 2026US 12,721,478 B2
- Multi-configuration herb grinder with enhanced crushing efficiency and interchangeable contoured grinding surfaces28 Jul 2026US 12,690,716 B1
- Grinding appliance16 Jun 2026US 12,653,344 B2A.D.M.T Trading Ltd
- Grinder and coffee machine having such a grinder17 Feb 2026US 12,551,045 B2Melitta Professional Coffee Solutions GmbH & Co. KG
- Grinder, grinding disk for a grinder, and coffee machine having a grinder of this type4 Nov 2025US 12,458,172 B2Melitta Professional Coffee Solutions GmbH & Co. KG
- Modular coffee grinder system with user-replaceable and upgradable precalibrated components17 Sep 2026US 2026/0272226 A1
- Coffee bean grinding assembly with temperature control structure30 Jul 2026US 2026/0215625 A1Guangdong Taineng Electric Appliance Manufacturing Co., Ltd.
- Method for Producing a Beverage, Preferably for Brewing Tea, and a Device and a Mill for Carrying Out the Method18 Jun 2026US 2026/0165339 A1Steiner AG Weggis
- Coffee grinding machine with burr alignment system and associated method12 Mar 2026US 2026/0069084 A1La Marzocco S.R.L.
- Coffee Bean Grinder20 Nov 2025US 2025/0352000 A1
Most cited
By later US patents
- Grinding burrs for coffee bean grinders27US 5,244,159 AGrindmaster Corporation · 1993
- Coffee grinder22US 5,201,474 ABunn-O-Matic Corporation · 1993
- Mill, in particular for pepper or salt12US 6,164,574 AZyliss Haushaltwaren AG · 2000
- Condiment grinder apparatus10US 6,491,244 B22002
- Spice grinder6US 8,783,595 B22014